Curable composition and shaped product

Abstract

A shaped product comprising a hardcoat layer, wherein the hardcoat layer is a cured product of a curable composition comprising a cationic curable silicone resin and a leveling agent, the cationic curable silicone resin comprising a silsesquioxane unit, having a monomer unit having an epoxy group in a proportion of not less than 50% by mol in a total monomer unit, and having a number average molecular weight of 1000 to 3000.

The invention claimed is: 
     
       1. A shaped product comprising a hardcoat layer having a pencil hardness of 4H to 9H in accordance with JIS K 5600, wherein the hardcoat layer is a cured product of a curable composition comprising a cationic curable silicone resin and a leveling agent,
 wherein the cationic curable silicone resin comprises a silsesquioxane unit and a unit represented by the formula (2): R 1 SiO(OR 2 )
 wherein R 1  represents a group comprising an epoxy group; a hydrogen atom; or a hydrocarbon group; and R 2  represents a hydrogen atom or a C 1-4 alkyl group; and 
 
 
       has a molar ratio of the silsesquioxane unit relative to the unit represented by the formula (2) of 7 to 18, has a monomer unit having an epoxy group in a proportion of not less than 50% by mol in a total monomer unit, and has a number average molecular weight of 1000 to 3000,
 wherein the leveling agent comprises a fluorine-containing leveling agent having a reactive group to an epoxy group, and a hydrolytically condensable group. 
 
     
     
       2. A shaped product according to  claim 1 , wherein the cationic curable silicone resin has a silsesquioxane unit represented by the formula (1): R 1 SiO 3/2  
 wherein R 1  represents a group comprising an epoxy group; a hydrogen atom; or a hydrocarbon group; 
 
       in a proportion of not less than 50% by mol in the total monomer unit constituting the cationic curable silicone resin. 
     
     
       3. A shaped product according to  claim 1 , wherein the silsesquioxane unit comprises a unit represented by the formula (3): R 3 SiO 3/2  
 wherein R 3  represents a group comprising an alicyclic epoxy group, and 
 a unit represented by the formula (4): R 4 SiO 3/2    
 
       wherein R 4  represents an aryl group which may have a substituent. 
     
     
       4. A shaped product according to  claim 1 , wherein the cationic curable silicone resin has a molecular weight distribution Mw/Mn of 1 to 3. 
     
     
       5. A shaped product according to  claim 1 , wherein the leveling agent has a proportion of 0.1 to 10 parts by weight relative to 100 parts by weight of the cationic curable silicone resin. 
     
     
       6. A shaped product according to  claim 1 , which comprises the hardcoat layer alone and has an average thickness of 10 to 200 μm. 
     
     
       7. A shaped product according to  claim 1 , which further comprises a transparent substrate layer, wherein the transparent substrate layer has a side provided with the hardcoat layer. 
     
     
       8. A shaped product according to  claim 6 , which is produced by a roll-to-roll system. 
     
     
       9. A shaped product according to  claim 1 , which comprises the hardcoat layer and a three-dimensional base.